MERIDIAN RESOURCE CORP
S-8, 1999-07-26
CRUDE PETROLEUM & NATURAL GAS
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      As filed with the Securities and Exchange Commission on July 26, 1999

                                                      REGISTRATION NO. 333-
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            ------------------------


                                    FORM S-8

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                            ------------------------


                        THE MERIDIAN RESOURCE CORPORATION
             (Exact name of registrant as specified in its charter)


          TEXAS                                       76-0319553
     (State or other                                (I.R.S Employer
     jurisdiction of                              Identification No.)
    incorporation or
      organization)

 15995 N. BARKER'S LANDING,
         SUITE 300                                       77079
       HOUSTON, TEXAS
   (Address of Principal                               (Zip Code)
     Executive Offices)

           MERIDIAN RESOURCE CORPORATION GEOSCIENTIST WELL BONUS PLAN
        MERIDIAN RESOURCE CORPORATION TMR EMPLOYEE TRUST WELL BONUS PLAN
                            (Full title of the plans)

                              JOSEPH A. REEVES, JR.
                CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER
                        THE MERIDIAN RESOURCE CORPORATION
                      15995 N. BARKER'S LANDING, SUITE 300
                              HOUSTON, TEXAS 77079
                     (Name and address of agent for service)

                                 (281) 558-8080
          (Telephone number, including area code, of agent for service)
                            ------------------------


                                  With Copy to:

                               CHARLES L. STRAUSS
                           FULBRIGHT & JAWORSKI L.L.P.
                            1301 MCKINNEY, SUITE 5100
                            HOUSTON, TEXAS 77010-3095
                                 (713) 651-5151
                            ------------------------


                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------
                                              PROPOSED MAXIMUM    PROPOSED MAXIMUM     AMOUNT OF
TITLE OF SECURITIES TO BE     AMOUNT TO BE   OFFERING PRICE PER   AGGREGATE OFFERING  REGISTRATION
        REGISTERED           REGISTERED(1)        SHARE(2)             PRICE(2)           FEE
- --------------------------------------------------------------------------------------------------
<S>                            <C>                  <C>              <C>               <C>
Common Stock, $.01 par value   2,000,000           $3.625             $7,250,000       $2015.50
==================================================================================================
</TABLE>
(1) Includes (i) 1,000,000 shares of Common Stock issuable pursuant to the
    Meridian Resource Corporation Geoscientist Well Bonus Plan, and (ii)
    1,000,000 shares of Common Stock issuable pursuant to the Meridian Resource
    Corporation TMR Employee Trust Well Bonus Plan. Also includes an
    indeterminate number of shares to be issued pursuant to the anti-dilution
    provisions of such plans and agreements. Also includes an equal number of
    associated rights pursuant to the Shareholder Rights Agreement dated May 5,
    1999 between the Company and American Stock Transfer & Trust Company.

(2) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(c) under the Securities Act of 1933 and based upon the
    average of the high and low sales prices of a share of the Common Stock as
    reported by the New York Stock Exchange, Inc. on July 22, 1999.

================================================================================
<PAGE>
                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT


ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

         The Meridian Resource Corporation, a Texas corporation (the "Company"
or "Registrant"), incorporates by reference in this Registration Statement the
following documents:

         1. The Registrant's Annual Report on Form 10-K for the fiscal year
ended December 31, 1998, as amended by Form 10-K/A dated April 30, 1999;

         2. The Registrant's Quarterly Report on Form 10-Q for the quarter ended
March 31, 1999;

         3. The Registrant's Current Reports on Form 8-K dated May 5, 1999 and
June 29, 1999; and

         4. The description of the Registrant's common stock, $.01 par value
("Common Stock"), contained in the Company's Registration Statement on Form 8-A,
as filed with the Securities and Exchange Commission on March 19, 1997,
including any amendment or report filed for the purpose of updating such
description.

         5. The description of the Registrant's stock purchase rights, contained
in the Company's Registration Statement on form 8-A, as filed with the
Securities and Exchange Commission on May 13, 1999, including any amendment or
report filed for the purpose of updating such description.

         All documents filed by the Registrant pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Securities Exchange Act of 1934 subsequent to the
date of the filing hereof and prior to the filing of a post-effective amendment
which indicates that all securities offered have been sold or which deregisters
all securities then remaining unsold, shall be deemed to be incorporated by
reference in this Registration Statement and to be a part hereof from the date
of filing of such documents.

ITEM 4.  DESCRIPTION OF SECURITIES.

         Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

         Not applicable.

                                    II-1
<PAGE>
ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         Article 2.02-1 of the Texas Business Corporation Act provides that a
corporation has the power to indemnify a director, officer, employee or agent of
the corporation and certain other persons serving at the request of the
corporation in related capacities against amounts paid and expenses incurred in
connection with an action or proceeding to which he is or is threatened to be
made a party by reason of such position, if such person shall have acted in good
faith and in a manner he reasonably believed to be in or not opposed to the best
interests of the corporation, and, in any criminal proceeding, if such person
had no reasonable cause to believe his conduct was unlawful; provided that, in
the case of actions brought by or in the right of the corporation, no
indemnification shall be made with respect to any matter as to which such person
shall have been adjudged to be liable to the corporation unless and only to the
extent that the adjudicating court determines that such indemnification is
proper under the circumstances.

         The Second Amended and Restated Articles of Incorporation of the
Registrant contain provisions which eliminate the personal liability of the
Registrant's directors for monetary damages resulting from breaches of their
fiduciary duty other than liability for breaches of the duty of loyalty, acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of law, any transaction from which the director derived an improper
personal benefit or any act or omission for which liability is expressly
provided by an applicable statute.

         Article XII of the Registrant's By-laws contains detailed provisions
for the indemnification by the Registrant of current and former directors,
officers, employees and agents of the Registrant on terms that have been derived
from Article 2.02-1 of the Texas Business Corporation Act.


ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

         Not applicable.


ITEM 8.  EXHIBITS.

         4.1   --   Third Amended and Restated Articles of Incorporation of the
                    Registrant (incorporated by reference to Exhibit 3.1 to the
                    Registrant's Annual Report on Form 10-K for the fiscal year
                    ended December 31, 1998).

         4.2   --   Amended and Restated Bylaws of the Company (incorporated by
                    reference to Exhibit 3.2 to the Registrant's Quarterly
                    Report on Form 10-Q for the three months ended September 30,
                    1998).

         4.3   --   Amendment No. 1 to Amended and Restated Bylaws (incorporated
                    by reference from the Registrant's Current Report on Form
                    8-K dated May 5, 1999).

                                      II-2
<PAGE>
         4.4   --   Specimen Common Stock Certificate (incorporated by reference
                    to Exhibit 4.1 of the Company's Registration Statement on
                    Form S-1, as amended (Reg. No. 33-65504)).

         4.5   --   Common Stock Purchase Warrant of the Company dated October
                    16, 1990, issued to Joseph A. Reeves, Jr. (incorporated by
                    reference to Exhibit 10.8 of the Company's Annual Report on
                    Form 10-K for the year ended December 31, 1991, as amended
                    by the Company's Form 8 filed March 4, 1993).

         4.6   --   Common Stock Purchase Warrant of the Company dated October
                    16, 1990, issued to Michael J. Mayell (incorporated by
                    reference to Exhibit 10.9 of the Company's Annual Report on
                    Form 10-K for the year ended December 31, 1991, as amended
                    by the Company's Form 8 filed March 4, 1993).

         4.7   --   Registration Rights Agreement dated October 16, 1990, among
                    the Company, Joseph A. Reeves, Jr. and Michael J. Mayell
                    (incorporated by reference to Exhibit 10.7 of the Company's
                    Registration Statement on Form S-4, as amended (Reg. No.
                    33-37488)).

         4.8   --   Warrant Agreement dated June 7, 1994, between the Company
                    and Joseph A. Reeves, Jr. (incorporated by reference to
                    Exhibit 4.1 of the Company's Quarterly Report on Form 10-Q
                    for the quarter ended June 30, 1994).

         4.9   --   Warrant Agreement dated June 7, 1994, between the Company
                    and Michael J. Mayell (incorporated by reference to Exhibit
                    4.1 of the Company's Quarterly Report on Form 10-Q for the
                    quarter ended June 30, 1994).

         4.10  --   Texas Meridian Resources Corporation 1995 Long-Term
                    Incentive Plan (incorporated by reference to Exhibit 10.6 of
                    the Company's Annual Report on Form 10-K for the year ended
                    December 31, 1996).

         4.11  --   Texas Meridian Resources Corporation 1997 Long-Term
                    Incentive Plan (incorporated by reference to Exhibit 10.2 of
                    the Company's Quarterly Report on Form 10-Q for the quarter
                    ended June 30, 1997).

         *4.12 --   Amendments No.'s 1 and 2 to the 1997 Long-Term Incentive
                    Plan.

         4.13  --   Cairn Energy USA, Inc. 1993 Stock Option Plan, as amended
                    (incorporated by reference to Exhibit 10.9 of Cairn Energy
                    USA, Inc.'s Annual Report on Form 10-K for the year ended
                    December 31, 1993).

         4.14  --   Cairn Energy USA, Inc. 1993 Directors Stock Option Plan, as
                    amended (incorporated by reference to Exhibit 10.6 of Cairn
                    Energy USA, Inc.'s Registration Statement on Form S-1 (Reg.
                    No. 33-64646)).

                                      II-3
<PAGE>
         4.15  --   Amended and Restated Credit Agreement dated May 22, 1998,
                    among the Company, the several banks and financial
                    institutions and other entities from time to time parties
                    thereto (the "Lenders"), The Chase Manhattan Bank, as
                    administrative agent for the Lenders, Bankers Trust Company,
                    as syndication agent, Chase Securities Inc., as advisor to
                    the Company, Chase Securities Inc., B. T. Alex. Brown
                    Incorporated, Toronto Dominion (Texas), Inc. and Credit
                    Lyonnais New York Branch as co-arrangers, and Toronto
                    Dominion (Texas), Inc. and Credit Lyonnais New York Branch,
                    as co-documentation agents. (incorporated by reference from
                    the Company's current report on Form 8-K dated June 30,
                    1998).

         4.16  --   Second Amended and Restated Guarantee dated June 30, 1998,
                    between the Guarantors signatory thereto and The Chase
                    Manhattan Bank, as Administrative Agent for the Lenders.
                    (incorporated by reference from the Company's current report
                    on Form 8-K dated June 30, 1998).

         4.17  --   Amended and Restated Pledge Agreement, dated May 22, 1998,
                    between the Company and The Chase Manhattan Bank, as
                    Administrative Agent. (incorporated by reference from the
                    Company's current report on Form 8-K dated June 30, 1998).

         4.18  --   First Amendment to Amended and Restated Pledge Agreement
                    datedJune 30, 1998. (incorporated by reference from the
                    Company's current report on Form 8-K dated June 30, 1998).

         4.19  --   Amendment No. 2 dated November 13, 1998 to Amended and
                    Restated Credit Agreement dated May 22, 1998, by and among
                    the Company, The Chase Manhattan Bank as administrative
                    agent, and the various lenders party thereto (incorporated
                    by reference from the Company's Quarterly Report on Form
                    10-Q for the three months ended September 30, 1998).

         *4.20 --   Amendment No. 3 dated January 19, 1999 to Amended and
                    Restated Credit Agreement dated May 22, 1998, by and among
                    the Company, The Chase Manhattan Bank as administrative
                    agent, and the various lenders party thereto

         *4.21 --   Amendment No. 4 dated April 30, 1999 to Amended and Restated
                    Credit Agreement dated May 22, 1998, by and among the
                    Company, The Chase Manhattan Bank as administrative agent,
                    and the various lenders party thereto

         4.22  --   The Meridian Resource Corporation Directors' Stock Option
                    Plan (incorporated by reference to Exhibit 10.5 of the
                    Company's Annual Report on Form 10-K for the year ended
                    December 31, 1991, as amended by the Company's Form 8 filed
                    March 4, 1993).

         *4.23 --   Amendment No. 1 to Director Stock Option Plan.

                                      II-4
<PAGE>
         4.24  --   Stock Rights and Restrictions Agreement dated as of June 30,
                    1998, by and between The Meridian Resource Corporation and
                    Shell Louisiana Onshore Properties Inc. (incorporated by
                    reference from the Company's Current Report on Form 8-K
                    dated June 30, 1998).

         4.25  --   Registration Rights Agreement dated June 30, 1998, by and
                    between The Meridian Resource Corporation and Shell
                    Louisiana Onshore Properties Inc. (incorporated by reference
                    from the Company's Current Report on Form 8-K dated June 30,
                    1998).

         4.26  --   The Meridian Resource Corporation 1990 Stock Option Plan
                    (incorporated by reference to Exhibit 10.6 of the Company's
                    Annual Report on Form 10-K for the year ended December 31,
                    1991, as amended by the Company's Form 8 filed March 4,
                    1993).

         4.27  --   Deferred Compensation agreement dated July 31, 1996, between
                    the Company and Joseph A. Reeves, Jr.(incorporated by
                    reference to Exhibit 10.1 of the Company's Quarterly Report
                    on Form 10-Q for the quarter ended September 30, 1996).

         4.28  --   Deferred Compensation agreement dated July 31, 1996, between
                    the Company and Michael J. Mayell (incorporated by reference
                    to Exhibit 10.1 of the Company's Quarterly Report on Form
                    10-Q for the quarter ended September 30, 1996).

         4.29  --   The Meridian Resource Corporation TMR Employee Trust Well
                    Bonus Plan (incorporated by reference from the Registrant's
                    Annual Report on Form 10-K for the year ended December 31,
                    1998).

         4.30  --   The Meridian Resource Corporation Management Well Bonus Plan
                    (incorporated by reference from the Registrant's Annual
                    Report on Form 10-K for the year ended December 31, 1998).

         4.31  --   The Meridian Resource Corporation Geoscientist Well Bonus
                    Plan (incorporated by reference from the Registrant's Annual
                    Report on Form 10-K for the year ended December 31, 1998).

         4.32  --   Note Purchase Agreement dated June 18, 1999, between the
                    Company and Kayne Anderson Energy Fund, L.P. (incorporated
                    by reference from the Registrant's Current Report on Form
                    8-K dated June 29, 1999).

         4.33  --   Note Purchase Agreement dated June 22, 1999, between the
                    Company and Eos Partners, L.P. (incorporated by reference
                    from the Registrant's Current Report on Form 8-K dated June
                    29, 1999).

                                      II-5
<PAGE>
         4.34  --   9 1/2% Subordinated Note due June 18, 2001, payable by the
                    Company to Kayne Anderson Energy Fund, L.P. (incorporated by
                    reference from the Registrant's Current Report on Form 8-K
                    dated June 29, 1999).

         4.35  --   9 1/2% Subordinated Note due June 18, 2001, payable by the
                    Company to Eos Partners, L.P. (incorporated by reference
                    from the Registrant's Current Report on Form 8-K dated June
                    29, 1999).

         4.36  --   Form of warrant attached as Annex A to Exhibits 4.34 and
                    4.35. (incorporated by reference from the Registrant's
                    Current Report on Form 8-K dated June 29, 1999)

         4.37  --   Rights Agreement dated May 5, 1999, between the Company and
                    American Stock Transfer & Trust Co., as Rights Agent
                    (incorporated by reference from the Registrant's Current
                    Report on Form 8-K dated May 5, 1999).

         4.38  --   Resolution Establishing a Series of Preferred Stock dated
                    May 5, 1999 (incorporated by reference from the Registrant's
                    Current Report on Form 8-K dated May 5, 1999).

         4.39  --   Form of Right Certificate (incorporated by reference from
                    the Registrant's Current Report on Form 8-K dated May 5,
                    1999).

         *5.1  --   Opinion of Fulbright & Jaworski L.L.P.

         23.1  --   Consent of Fulbright & Jaworski L.L.P. (included in Exhibit
                    5.1).

         *23.2 --   Consent of Ernst & Young LLP with respect to the financial
                    statements of The Meridian Resource Corporation.

         *23.3 --   Consent of Ryder Scott Petroleum Company.

         *23.4 --   Consent of T.J. Smith & Company

         24.1  --   Powers of Attorney (included on page II-5 of this
                    Registration Statement).

         As permitted by Item 601(b)(4)(iii)(A) of Regulation S-K, the
Registrant has not filed with this Registration Statement certain instruments
defining the rights of holders of long-term debt of the Registrant and its
subsidiaries because the total amount of securities authorized under any of such
instruments does not exceed 10% of the total assets of the Registrant and its
subsidiaries on a consolidated basis. The Registrant agrees to furnish a copy of
any such agreements to the Securities and Exchange Commission upon request.

ITEM 9.  UNDERTAKINGS.

         The undersigned Registrant hereby undertakes:

                                      II-6
<PAGE>
         (1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this Registration Statement:

         (i) To include any prospectus required by Section 10(a)(3) of the
Securities Act of 1933;

         (ii) To reflect in the prospectus any facts or events arising after the
effective date of this Registration Statement (or the most recent post-effective
amendment hereof) which, individually or in the aggregate, represent a
fundamental change in the information set forth in this Registration Statement.
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of prospectus
filed with the Securities and Exchange Commission pursuant to Rule 424(b) if, in
the aggregate, the changes in volume and price represent no more than a 20%
change in the maximum aggregate offering price set forth in the "Calculation of
Registration Fee" table in the effective registration statement; and

         (iii) To include any material information with respect to the plan of
distribution not previously disclosed in this Registration Statement or any
material change to such information in this Registration Statement;

         PROVIDED, HOWEVER, that paragraphs (1)(i) and (1)(ii) do not apply if
the registration statement is on Form S-3, Form S-8 or Form F-3 and the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed with or furnished to the
Securities and Exchange Commission by the Registrant pursuant to Section 13 or
Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by
reference in this Registration Statement.

         (2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered herein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

         (3) To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

         The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in this
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered herein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the Registrant pursuant to the foregoing provisions, or otherwise, the
Registrant has been advised that in the opinion of the Securities and

                                      II-7
<PAGE>
Exchange Commission such indemnification is against public policy as expressed
in the Securities Act of 1933 and is, therefore, unenforceable. In the event
that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person
in connection with the securities being registered, the Registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act of 1933 and will be governed by the final adjudication of such
issue.

                                      II-8
<PAGE>
                                   SIGNATURES

       Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Houston, State of Texas, on July 23, 1999.

                                       THE MERIDIAN RESOURCE CORPORATION


                                       By: /S/ JOSEPH A. REEVES, JR.
                                                   Joseph A. Reeves, Jr.
                                                  CHIEF EXECUTIVE OFFICER

                               POWER OF ATTORNEY

       KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Joseph A. Reeves, Jr. and Michael J. Mayell, and
each of them, either one of whom may act without joinder of the other, his true
and lawful attorneys-in-fact and agents, with full power of substitution and
resubstitution, for him and in his name, place and stead, in any and all
capacities, to sign any or all amendments (including post-effective amendments)
to this Registration Statement, and to file the same, with all exhibits thereto
and other documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done, as fully to all intents and purposes as he
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, and each of them, or the substitute or substitutes
of any or all of them, may lawfully do or cause to be done by virtue hereof.

       Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.


         SIGNATURE                         TITLE                      DATE

/S/ JOSEPH A. REEVES, JR.        Chief Executive Officer           July 23, 1999
    Joseph A. Reeves, Jr.       (Principal Executive Officer)
                             Director and Chairman of the Board

/S/ MICHAEL J. MAYELL              President and Director          July 23, 1999
    Michael J. Mayell

/S/ P. RICHARD GESSINGER          Executive Vice President         July 23, 1999
    P. Richard Gessinger          (Chief Financial Officer)

/S/ LLOYD V. DELANO        Vice President-Director of Accounting   July 23, 1999
    Lloyd V. DeLano               (Chief Accounting Officer)

_________________________                  Director                July __, 1999
        Paul Ching

                                      II-9
<PAGE>
_________________________                  Director                July __, 1999
       E. L. Henry

/S/ JOE E. KARES                           Director                July 23, 1999
    Joe E. Kares

/S/ JAMES T. BOND                          Director                July 23, 1999
    James T. Bond

/S/ GARY A. MESSERSMITH                    Director                July 23, 1999
    Gary A. Messersmith

_________________________                  Director                July __, 1999
     Jack A. Prizzi

                                    II-10
<PAGE>
                                 EXHIBIT INDEX

EXHIBIT                                                                    PAGE
NUMBER                            DESCRIPTION                             NUMBER
- -------                           -----------                             ------
4.1   --   Third Amended and Restated Articles of Incorporation of the
           Registrant (incorporated by reference to Exhibit 3.1 to the
           Registrant's Annual Report on Form 10-K for the fiscal year
           ended December 31, 1998).

4.2   --   Amended and Restated Bylaws of the Company (incorporated by
           reference to Exhibit 3.2 to the Registrant's Quarterly
           Report on Form 10-Q for the three months ended September 30,
           1998).

4.3   --   Amendment No. 1 to Amended and Restated Bylaws (incorporated
           by reference from the Registrant's Current Report on Form
           8-K dated May 5, 1999).

4.4   --   Specimen Common Stock Certificate (incorporated by reference
           to Exhibit 4.1 of the Company's Registration Statement on
           Form S-1, as amended (Reg. No. 33-65504)).

4.5   --   Common Stock Purchase Warrant of the Company dated October
           16, 1990, issued to Joseph A. Reeves, Jr. (incorporated by
           reference to Exhibit 10.8 of the Company's Annual Report on
           Form 10-K for the year ended December 31, 1991, as amended
           by the Company's Form 8 filed March 4, 1993).

4.6   --   Common Stock Purchase Warrant of the Company dated October
           16, 1990, issued to Michael J. Mayell (incorporated by
           reference to Exhibit 10.9 of the Company's Annual Report on
           Form 10-K for the year ended December 31, 1991, as amended
           by the Company's Form 8 filed March 4, 1993).

4.7   --   Registration Rights Agreement dated October 16, 1990, among
           the Company, Joseph A. Reeves, Jr. and Michael J. Mayell
           (incorporated by reference to Exhibit 10.7 of the Company's
           Registration Statement on Form S-4, as amended (Reg. No.
           33-37488)).

4.8   --   Warrant Agreement dated June 7, 1994, between the Company
           and Joseph A. Reeves, Jr. (incorporated by reference to
           Exhibit 4.1 of the Company's Quarterly Report on Form 10-Q
           for the quarter ended June 30, 1994).

4.9   --   Warrant Agreement dated June 7, 1994, between the Company
           and Michael J. Mayell (incorporated by reference to Exhibit
           4.1 of the Company's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1994).

4.10  --   Texas Meridian Resources Corporation 1995 Long-Term
           Incentive Plan (incorporated by reference to Exhibit 10.6 of
           the Company's Annual Report on Form 10-K for the year ended
           December 31, 1996).
<PAGE>
4.11  --   Texas Meridian Resources Corporation 1997 Long-Term
           Incentive Plan (incorporated by reference to Exhibit 10.2 of
           the Company's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1997).

*4.12 --   Amendments No.'s 1 and 2 to the 1997 Long-Term Incentive
           Plan.

4.13  --   Cairn Energy USA, Inc. 1993 Stock Option Plan, as amended
           (incorporated by reference to Exhibit 10.9 of Cairn Energy
           USA, Inc.'s Annual Report on Form 10-K for the year ended
           December 31, 1993).

4.14  --   Cairn Energy USA, Inc. 1993 Directors Stock Option Plan, as
           amended (incorporated by reference to Exhibit 10.6 of Cairn
           Energy USA, Inc.'s Registration Statement on Form S-1 (Reg.
           No. 33-64646)).

4.15  --   Amended and Restated Credit Agreement dated May 22, 1998,
           among the Company, the several banks and financial
           institutions and other entities from time to time parties
           thereto (the "Lenders"), The Chase Manhattan Bank, as
           administrative agent for the Lenders, Bankers Trust Company,
           as syndication agent, Chase Securities Inc., as advisor to
           the Company, Chase Securities Inc., B. T. Alex. Brown
           Incorporated, Toronto Dominion (Texas), Inc. and Credit
           Lyonnais New York Branch as co-arrangers, and Toronto
           Dominion (Texas), Inc. and Credit Lyonnais New York Branch,
           as co-documentation agents. (incorporated by reference from
           the Company's current report on Form 8-K dated June 30,
           1998).

4.16  --   Second Amended and Restated Guarantee dated June 30, 1998,
           between the Guarantors signatory thereto and The Chase
           Manhattan Bank, as Administrative Agent for the Lenders.
           (incorporated by reference from the Company's current report
           on Form 8-K dated June 30, 1998).

4.17  --   Amended and Restated Pledge Agreement, dated May 22, 1998,
           between the Company and The Chase Manhattan Bank, as
           Administrative Agent. (incorporated by reference from the
           Company's current report on Form 8-K dated June 30, 1998).

4.18  --   First Amendment to Amended and Restated Pledge Agreement
           datedJune 30, 1998. (incorporated by reference from the
           Company's current report on Form 8-K dated June 30, 1998).

4.19  --   Amendment No. 2 dated November 13, 1998 to Amended and
           Restated Credit Agreement dated May 22, 1998, by and among
           the Company, The Chase Manhattan Bank as administrative
           agent, and the various lenders party thereto (incorporated
           by reference from the Company's Quarterly Report on Form
           10-Q for the three months ended September 30, 1998).
<PAGE>
*4.20 --   Amendment No. 3 dated January 19, 1999 to Amended and
           Restated Credit Agreement dated May 22, 1998, by and among
           the Company, The Chase Manhattan Bank as administrative
           agent, and the various lenders party thereto

*4.21 --   Amendment No. 4 dated April 30, 1999 to Amended and Restated
           Credit Agreement dated May 22, 1998, by and among the
           Company, The Chase Manhattan Bank as administrative agent,
           and the various lenders party thereto

4.22  --   The Meridian Resource Corporation Directors' Stock Option
           Plan (incorporated by reference to Exhibit 10.5 of the
           Company's Annual Report on Form 10-K for the year ended
           December 31, 1991, as amended by the Company's Form 8 filed
           March 4, 1993).

*4.23 --   Amendment No. 1 to Director Stock Option Plan.

4.24  --   Stock Rights and Restrictions Agreement dated as of June 30,
           1998, by and between The Meridian Resource Corporation and
           Shell Louisiana Onshore Properties Inc. (incorporated by
           reference from the Company's Current Report on Form 8-K
           dated June 30, 1998).

4.25  --   Registration Rights Agreement dated June 30, 1998, by and
           between The Meridian Resource Corporation and Shell
           Louisiana Onshore Properties Inc. (incorporated by reference
           from the Company's Current Report on Form 8-K dated June 30,
           1998).

4.26  --   The Meridian Resource Corporation 1990 Stock Option Plan
           (incorporated by reference to Exhibit 10.6 of the Company's
           Annual Report on Form 10-K for the year ended December 31,
           1991, as amended by the Company's Form 8 filed March 4,
           1993).

4.27  --   Deferred Compensation agreement dated July 31, 1996, between
           the Company and Joseph A. Reeves, Jr.(incorporated by
           reference to Exhibit 10.1 of the Company's Quarterly Report
           on Form 10-Q for the quarter ended September 30, 1996).

4.28  --   Deferred Compensation agreement dated July 31, 1996, between
           the Company and Michael J. Mayell (incorporated by reference
           to Exhibit 10.1 of the Company's Quarterly Report on Form
           10-Q for the quarter ended September 30, 1996).
<PAGE>
4.29  --   The Meridian Resource Corporation TMR Employee Trust Well
           Bonus Plan (incorporated by reference from the Registrant's
           Annual Report on Form 10-K for the year ended December 31,
           1998).

4.30  --   The Meridian Resource Corporation Management Well Bonus Plan
           (incorporated by reference from the Registrant's Annual
           Report on Form 10-K for the year ended December 31, 1998).

4.31  --   The Meridian Resource Corporation Geoscientist Well Bonus
           Plan (incorporated by reference from the Registrant's Annual
           Report on Form 10-K for the year ended December 31, 1998).

4.32  --   Note Purchase Agreement dated June 18, 1999, between the
           Company and Kayne Anderson Energy Fund, L.P. (incorporated
           by reference from the Registrant's Current Report on Form
           8-K dated June 29, 1999).

4.33  --   Note Purchase Agreement dated June 22, 1999, between the
           Company and Eos Partners, L.P. (incorporated by reference
           from the Registrant's Current Report on Form 8-K dated June
           29, 1999).

4.34  --   9 1/2% Subordinated Note due June 18, 2001, payable by the
           Company to Kayne Anderson Energy Fund, L.P. (incorporated by
           reference from the Registrant's Current Report on Form 8-K
           dated June 29, 1999).

4.35  --   9 1/2% Subordinated Note due June 18, 2001, payable by the
           Company to Eos Partners, L.P. (incorporated by reference
           from the Registrant's Current Report on Form 8-K dated June
           29, 1999).

4.36  --   Form of warrant attached as Annex A to Exhibits 4.34 and
           4.35. (incorporated by reference from the Registrant's
           Current Report on Form 8-K dated June 29, 1999)

4.37  --   Rights Agreement dated May 5, 1999, between the Company and
           American Stock Transfer & Trust Co., as Rights Agent
           (incorporated by reference from the Registrant's Current
           Report on Form 8-K dated May 5, 1999).

4.38  --   Resolution Establishing a Series of Preferred Stock dated
           May 5, 1999 (incorporated by reference from the Registrant's
           Current Report on Form 8-K dated May 5, 1999).

4.39  --   Form of Right Certificate (incorporated by reference from
           the Registrant's Current Report on Form 8-K dated May 5,
           1999).

*5.1  --   Opinion of Fulbright & Jaworski L.L.P.

23.1  --   Consent of Fulbright & Jaworski L.L.P. (included in Exhibit
           5.1).
<PAGE>
*23.2 --   Consent of Ernst & Young LLP with respect to the financial
           statements of The Meridian Resource Corporation.

*23.3 --   Consent of Ryder Scott Petroleum Company.

*23.4 --   Consent of T.J. Smith & Company

24.1  --   Powers of Attorney (included on page II-5 of this
           Registration Statement).

*Filed herewith.

      As permitted by Item 601(b)(4)(iii)(A) of Regulation S-K, the Registrant
has not filed with this Registration Statement certain instruments defining the
rights of holders of long-term debt of the Registrant and its subsidiaries
because the total amount of securities authorized under any of such instruments
does not exceed 10% of the total assets of the Registrant and its subsidiaries
on a consolidated basis. The Registrant agrees to furnish a copy of any such
agreements to the Securities and Exchange Commission upon request.

                                                                    EXHIBIT 4.12

                AMENDMENT NO. 1 TO THE 1997 LONG-TERM INCENTIVE
                    PLAN ADOPTED BY THE BOARD OF DIRECTORS
                                 IN AUGUST, 1998

            RESOLVED, that, an amendment (the "AMENDMENT") to the Company's 1997
      Long-Term Incentive Plan (the "LONG-TERM INCENTIVE PLAN"), to amend and
      restate the third paragraph of Section 1.5 of the Long-Term Incentive Plan
      as set forth below is hereby authorized, ratified and approved:


            "There shall be no limit on (i) the aggregate number of shares of
            Common Stock subject to Options or Stock Appreciation Rights that
            may be granted to any one participant in any one year under the
            Plan; (ii) the aggregate number of shares of Common Stock that may
            be granted to any one participant in any one year in respect of
            Restricted Stock; (iii) the aggregate number of shares of Common
            Stock that may be received by any one participant in any one year in
            respect of a Performance Award; or the aggregate amount of cash that
            may be received by any one participant in any one year in respect to
            a Performance Award."

                AMENDMENT NO. 2 TO THE 1997 LONG-TERM INCENTIVE
                    PLAN ADOPTED BY THE BOARD OF DIRECTORS
                                  IN MAY, 1999

            RESOLVED, that, an amendment (the "AMENDMENT") to the Company's 1997
      Long-Term Incentive Plan (the "LONG-TERM INCENTIVE PLAN"), to amend and
      restate the first paragraph of Section 1.5 of the Long-Term Incentive Plan
      as set forth below is hereby authorized, ratified and approved:

"Initially, the aggregate number of shares of Common Stock that may be issued
under the Plan shall be 720,000. This number of shares, together with the number
of shares of Common Stock reserved for outstanding and future awards under the
Company's 1995 Long-Term Incentive Plan (the "1995 Plan") represent
approximately 10% of the total outstanding number of shares of Common Stock as
of the effective date of the Plan. As of January 1 of each year the Plan is in
effect, if the total number of shares of Common Stock issued and outstanding,
not including any shares issued under the Plan or the 1995 Plan, exceeds the
total number of shares of Common Stock issued and outstanding as of January 1 of
the preceding year (or, for 1998, as of the commencement of the Plan), the
number of shares that may be issued under the Plan shall be increased (in the
event there is an increase in the number of shares of Common Stock outstanding)
by an amount such that the total number of shares of Common Stock available for
issuance under the Plan and the 1995 Plan equals 10% of the total number of
shares of Common Stock outstanding, not including any shares issued under the
[1997] Plan and the 1995 Plan. For purposes of the preceding sentence, shares of
Common Stock that may be issued upon conversion of issued and outstanding
preferred stock, $1.00 par value, of the Company shall be considered issued and
outstanding."

                                                                    EXHIBIT 4.20

                                                                  EXECUTION COPY

                           THIRD AMENDMENT AND WAIVER

      THIRD AMENDMENT AND WAIVER, dated as of January 19, 1999 (this "THIRD
AMENDMENT"), to the amended and Restated Credit Agreement (as amended,
supplemented or otherwise modified from time to time), dated as of May 22, 1998
(the "CREDIT AGREEMENT"), among The Meridian Resource Corporation, a Texas
corporation (the "BORROWER"), the several lenders from time to time parties
thereto (the "LENDERS"), The Chase Manhattan Bank, as the Administrative Agent
for the Lenders (in such capacity, the "ADMINISTRATIVE AGENT"), Toronto Dominion
(Texas), Inc. and MeesPierson N.V., as co-arrangers (each in such capacity, a
"CO-ARRANGER"), and Toronto Dominion (Texas), Inc., as a documentation agent (in
such capacity, the "DOCUMENTATION AGENT").

                              W I T N E S S E T H:

      WHEREAS, the Borrower, the Lenders and the Administrative Agent are
parties to the Credit Agreement;

      WHEREAS, the Borrower, EEX Corporation, a Texas corporation ("PARENT") and
an affiliate of Parent (Parent and its affiliate collectively referred to herein
as "EEX"), shall have entered into a Like-Kind Exchange Agreement (as amended,
supplemented or otherwise modified from time to time), to be dated effective as
of August 1, 1998 (the "EXCHANGE AGREEMENT"), pursuant to which (i) the Borrower
and Cairn Energy USA, Inc. ("CAIRN") shall release to EEX their 37.5 percent
working interest in and to the OCS leases covering the offshore blocks and the
producing wells located in the Cameron Block 349 Field (the "EAST CAMERON
BLOCKS") as described in Annex A attached hereto and (ii) the Borrower and Cairn
shall acquire from EEX the onshore properties as described in Annex B attached
hereto (the "EXCHANGED LOUISIANA PROPERTIES");

      WHEREAS, the Borrower has requested, and the Administrative Agent and the
Lenders have agreed, upon consummation of the EEX Exchange Transaction (as
hereinafter defined), to release the existing lien affecting the East Cameron
Blocks as described in Annex A attached hereto:

      WHEREAS, the Borrower has agreed, upon consummation of the EEX Exchange
Transaction, to amend the Mortgage to include the Exchanged Louisiana Properties
as described in Annex B attached hereto, effective to create a first priority
lien on such properties; and

      WHEREAS, the Borrower has requested and the Administrative Agent and the
Lenders agree to waive compliance with certain provisions of the Credit
Agreement upon the terms and subject to the conditions set forth herein;

      NOW, THEREFORE, in consideration of the premises and of the mutual
agreements herein contained, the parties hereto hereby agree as follows:
<PAGE>
      1. DEFINED TERMS. Terms defined in the Credit Agreement and used herein
shall, unless otherwise indicated, have the meanings given to them in the Credit
Agreement.

      2. AMENDMENTS TO SUBSECTION 1.1 OF THE CREDIT AGREEMENT. (a) Subsection
1.1 of the Credit Agreement is hereby amended by adding thereto the following
new definitions in alphabetical order:

            "EAST CAMERON BLOCKS": the offshore properties as described in Annex
      A attached hereto.

            "EEX": EEX Corporation, a Texas corporation and an affiliate
      thereof, both parties to the Exchange Agreement.

            "EEX EXCHANGE TRANSACTION": the exchange of property between EEX and
      the Borrower pursuant to the Exchange Agreement.

            "EXCHANGE AGREEMENT": the Like-Kind Exchange Agreement (as amended,
      supplemented or otherwise modified from time to time), to be entered into
      between EEX and the borrower, to be dated effective as of August 1, 1998,
      the material terms of which are described on Annex D attached hereto.

            "EXCHANGED LOUISIANA PROPERTIES": the onshore properties as
      described in Annex B attached hereto.

            "EXCHANGED LOUISIANA PROPERTIES MORTGAGE": the mortgages and deeds
      of trust on Oil and Gas Properties consisting of the Exchanged Louisiana
      Properties which is the collateral described in Annex B, substantially in
      the form of Exhibit L attached hereto as Annex C to supplement the
      Existing Mortgage as amended by the Mortgage Amendment and the Second
      Mortgage Amendment, as the same may be amended, supplemented or otherwise
      modified from time to time.

      3. WAIVER OF SUBSECTION 8.6(D) OF THE CREDIT AGREEMENT. The Administrative
Agent and the Required Lenders hereby waive compliance with the provisions of
Section 8.6(d) of the Credit Agreement (and any Default or Event of Default
resulting therefrom) resulting solely from the EEX Exchange Transaction;
PROVIDED that, on or prior to the consummation of the EEX Exchange Transaction,
(a) the EEX Exchange Transaction shall have been consummated on the terms
outlined on Annex D attached hereto, (b) the Borrower shall have granted to the
Administrative Agent, for the ratable benefit of the Lenders, a first priority
security interest in the Exchanged Louisiana Properties, (c) the Borrower shall
apply any cash amount or equalization payment it receives from EEX towards
prepayment of the Loan and (d) until the March '99 Redetermination, the Borrower
shall not convey, sell, lease, assign, transfer or otherwise dispose of any of
its property, business or assets (including, without limitation, receivables and
leasehold interests) pursuant to subsection 8.6(d) of the Credit Agreement.
<PAGE>
      4. RELEASE OF EAST CAMERON BLOCKS; ADDITION OF EXCHANGED LOUISIANA
PROPERTIES. (a) The Administrative Agent and the Required Lenders hereby
acknowledge and agree that upon the consummation of the EEX Exchange
Transaction, (i) the liens and security interests of the Administrative Agent
and the Lenders covering the East Cameron Blocks shall be deemed automatically
released, extinguished and discharged, and (ii) the Administrative Agent shall
execute such instruments as the Borrower may reasonably request to release such
security interest in the East Cameron Block which is the collateral described in
Annex A.

      (b) The Borrower hereby acknowledges and agrees that upon consummation of
the EEX Exchange Transaction, (i) the Borrower shall grant to the Administrative
Agent for the ratable benefit of the Lenders a first priority security interest
in the Exchanged Louisiana Properties and (ii) the Borrower shall execute such
instruments as the Administrative Agent may reasonably request to create such a
security interest in the Exchanged Louisiana Properties which is the collateral
described in Annex B.

      5. ADDITION OF ANNEX A, ANNEX B AND EXHIBIT L TO THE CREDIT Agreement. The
Credit Agreement is hereby amended and supplemented by (i) adding thereto Annex
A and B attached hereto and (ii) adding thereto a new Exhibit L (the Exchanged
Louisiana Properties mortgage) attached hereto as Annex C.

      6. CONDITIONS TO EFFECTIVENESS. The amendments and waivers provided for in
this Third Amendment shall become effective on the date (the "THIRD AMENDMENT
EFFECTIVE DATE") upon which the following conditions precedent are satisfied and
the Administrative Agent notifies the Borrower and the Lenders of the occurrence
of the third Amendment Effective Date:

            (a) the Administrative Agent shall have received counterparts of
      this Third Amendment, duly executed by the Borrower and the Required
      Lenders.

            (b) the Administrative Agent shall have received counterparts of the
      Acknowledgment and Consent, duly executed by the Guarantors attached
      hereto:

            (c) the Administrative Agent shall have received the Exchanged
      Louisiana Properties Mortgage, executed and delivered by a duly authorized
      officer of each Loan Party thereto:

            (d) the Administrative Agent shall have received all fees and
      expenses required to be paid on or before the Third Amendment Effective
      Date:

            (e) the Administrative Agent shall have received a legal opinion of
      counsel to the Borrower and special Louisiana counsel to the
      Administrative Agent in form and substances satisfactory to the
      Administrative Agent;

            (f) the Administrative Agent shall have received a copy of the
      resolutions, in form and substance satisfactory to the Administrative
      Agent, of the Board of Directors of each
<PAGE>
      applicable Loan party authorizing the execution, delivery and performance
      of (i) this Third Amendment, (ii) the Exchanged Louisiana Properties
      Mortgage and (iii) the Exchange Agreement, certified by its Secretary or
      Assistant Secretary as of the third Amendment Effective Date, which
      certificate shall state that the resolution thereby certified have not
      been amended, modified, revoked or rescinded as of the date of such
      certificate; and

            (g) the Administrative Agent shall be satisfied as to the title of
      the Exchanged Louisiana Properties.

      7. REPRESENTATIONS AND WARRANTIES. The Borrower as of the date hereof and
after giving effect to the amendments contained herein, hereby (a) represents
and warrants to the Administrative Agent and each Lender that the list of
additional properties described in (i) Annex A attached hereto, (ii) Annex B
attached hereto and (iii) the Exchanged Louisiana Properties Mortgage attached
hereto as Annex C on the date hereof is true and complete and (b) confirms,
reaffirms and restates that (i) representations and warranties made by it in
Section 5 of the Credit Agreement are true and correct on and as of the date
hereof (except to the extent such representations and warranties are stated to
relate to a specific earlier date) and (ii) no Default or Event of Default has
occurred and is continuing on the date hereof; PROVIDED, that each reference to
the Credit Agreement herein shall be deemed to be a reference to the Credit
Agreement after giving effect to this Third Amendment.

      8. PAYMENT OF EXPENSES. The Borrower agrees to pay or reimburse the
Administrative Agent for all of its out-of-pocket costs and reasonable expenses
incurred in connection with this Third Amendment, any other documents prepared
in connection herewith and the transactions contemplated hereby, including,
without limitation, the reasonable fees and disbursements of counsel to the
Administrative Agent.

      9. REFERENCE TO AND EFFECT ON THE LOAN DOCUMENTS; LIMITED EFFECT. On and
after the date hereof and the satisfaction of the conditions contained in
Section 7 of this Third Amendment, each reference in the Credit Agreement to
"this Agreement", "hereunder", "hereof" or words of like import referring to the
Credit Agreement, and each reference in the other Loan Documents to "the Credit
Agreement", "thereunder", "thereof" or words of like import referring to the
Credit Agreement, shall mean and be a reference to the Credit Agreement as
amended hereby. The execution, delivery and effectiveness of this Third
Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power or remedy of any Lender or the Agent under any of the Loan
Documents, nor constitute a waiver of any provisions of any of the Loan
Documents. Except as expressly amended herein, all of the provisions and
covenants of the Credit Agreement and the other Loan Documents are and shall
continue to remain in full force and effect in accordance with the terms thereof
and are hereby in all respects ratified and confirmed.

      10. COUNTERPARTS. This Third Amendment may be executed by one or more of
the parties hereto in any number of separate counterparts (which may include
counterparts delivered by facsimile transmission) and all of said counterparts
taken together shall be deemed to constitute one and the same instrument. Any
executed counterpart delivered by facsimile transmission shall be effective for
all purposes hereof.
<PAGE>
      11. SEVERABILITY. Any provision of this Third Amendment which is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

      12. INTEGRATION. This Third Amendment and the other Loan Documents
represent the agreement of the Loan Parties, the Administrative Agent and the
Lenders with respect to the subject matter hereof, and there are no promises,
undertakings, representations or warranties by the Administrative Agent or any
Lender relative to the subject matter hereof not expressly set forth or referred
to herein or in the other Loan Documents.

      13. GOVERNING LAW. THIS THIRD AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF
THE PARTIES UNDER THIS THIRD AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND
INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.


                 [Remainder of Page Intentionally Left Blank]
<PAGE>
            IN WITNESS WHEREOF, the parties hereto have caused this Fourth
Amendment to be duly executed and delivered by their respective proper and duly
authorized officer as of the day
and year first above written.

                              THE MERIDIAN RESOURCE CORPORATION



                              By:/s/ P. RICHARD GESSINGER
                              Name:  P. Richard Gessinger
                              Title: Executive Vice President


                              THE CHASE MANHATTAN BANK, as
                                Administrative Agent, Issuing Lender and as a
                                Lender


                              By:/s/ STEVEN WOOD
                              Name:  Steven Wood
                              Title: Vice President


                              MORGAN GUARANTY TRUST COMPANY OF NEW YORK,
                                as a Lender


                              By:/s/ CAN'T READ THIS NAME
                              Name:  Can't read this name
                              Title: Vice President
<PAGE>
                              MEES PIERSON, as a Lender

                              By:/s/ DARRELL W. HOLLEY
                              Name:  Darrell W. Holley
                              Title: Senior Vice President


                              By:/s/ DEIRDRE M. SANBORN
                              Name:  Deirdre M. Sanborn
                              Title: Assistant Vice President


                              NATIONSBANK, N.A., as a Lender


                              By:/s/ JAMES R. ALLRED
                              Name:  James R. Allred
                              Title: Managing Director


                              SOCIETE GENERALE, SOUTHWEST AGENCY, as a Lender


                              By:/s/ PAUL S. CARVER
                              Name:  Paul S. Carver
                              Title: Managing Director


                              TORONTO DOMINION (TEXAS), INC., as Arranger,
                                Documentation Agent and as a Lender


                              By:/s/ AZAR S. AZARPOUR
                              Name:  Azar S. Azarpour
                              Title: Vice President

                                                                    EXHIBIT 4.21

                                FOURTH AMENDMENT

      FOURTH AMENDMENT, dated as of April 30, 1999 (this "FOURTH AMENDMENT"), to
the Amended and Restated Credit Agreement (as amended, supplemented or otherwise
modified from time to time), dated as of May 22, 1998 (the "CREDIT AGREEMENT"),
among The Meridian Resource Corporation, a Texas corporation (the "BORROWER"),
the several lenders from time to time parties thereto (the "LENDERS"), The Chase
Manhattan Bank, as the Administrative Agent for the Lenders (in such capacity,
the "ADMINISTRATIVE AGENT"), Toronto Dominion (Texas), Inc. and Mees Pierson
N.V., as co-arrangers (each in such capacity, a "CO-ARRANGER"), and Toronto
Dominion (Texas), Inc., as documentation agent (in such capacity, the
"DOCUMENTATION AGENT").

                             W I T N E S S E T H:

      WHEREAS, the Borrower, the Lenders and the Administrative Agent are
parties to the Credit Agreement; and

      WHEREAS, the Borrower has requested, and the Administrative Agent and the
Lenders have agreed to certain modifications as set forth herein;

      NOW, THEREFORE, in consideration of the premises and of the mutual
agreements herein contained, the parties hereto hereby agree as follows:

      1. DEFINED TERMS. Terms defined in the Credit Agreement and used herein
shall, unless otherwise indicated, have the meanings given to them in the Credit
Agreement.

      2. AMENDMENTS TO SUBSECTION 1.1 OF THE CREDIT AGREEMENT. (a) Subsection
1.1 of the Credit Agreement is hereby amended by deleting therefrom the
definitions of "Applicable Margin" "Borrowing Base" and "Commitment Fee Rate"
contained therein in their entirety and substituting in lieu thereof the
following definitions:

            "APPLICABLE MARGIN": for any day with respect to Eurodollar Loans
      and ABR Loans, the applicable per annum rate set forth below opposite the
      Borrowing Base Usage in effect on such day:

       BORROWING           EURODOLLAR           ABR
      BASE USAGE             MARGIN            MARGIN
      ----------           ----------          ------
      Less than or
       equal to 33%           1.00%                0%

                                     -1-
<PAGE>
      Greater than 33%
       and less than or
       equal to 66%           1.25%              .25%

      Greater than 66%
       and less than 80%      1.50%              .50%

      Equal to or greater
       than 80% and less
       than 90%               2.25%             1.25%

      Equal to or greater
       than 90%               2.50%             1.50%


      PROVIDED if there is no Borrowing Base Deficiency on the effective date of
      the Applicable Redetermination (after giving effect thereto, or if there
      is such a Borrowing Base Deficiency, such deficiency is cured within 30
      days, as contemplated herein), then commencing on the later of such
      effective date or cure date, if applicable, the Applicable Margin
      thereafter, for any day with respect to Eurodollar Loans and ABR Loans
      shall be the applicable per annum rate set forth below opposite the
      Borrowing Base Usage in effect on any such day:



       BORROWING           EURODOLLAR           ABR
      BASE USAGE             MARGIN            MARGIN
      ----------           ----------          ------
      Less than or
       equal to 33%           1.00%                0%

      Greater than 33%
       and less than or
       equal to 66%           1.25%              .25%

      Greater than 66%        1.50%              .50%

                                     -2-
<PAGE>
      As used herein, "BORROWING BASE USAGE" on any day means the percentage
      equivalent to the ratio of (1) the sum of the aggregate principal amount
      of the Loans then outstanding and Letter of Credit Outstandings on such
      day to (ii) the Borrowing Base in effect on such day.

            "BORROWING BASE": at any time of determination, the amount then in
      effect as determined in accordance with the subsection 4.9; PROVIDED,
      HOWEVER, that until the Applicable Redetermination, the Borrowing Base
      shall be $250,000,000.

            "COMMITMENT FEE RATE": for any day, a rate per annum equal to (a)
      .30% if the Borrowing Base Usage in effect on such date is less than or
      equal to 33%, (b) .375% if the Borrowing Base Usage in effect on such day
      is greater than 33% and less than 80% and (c) .50% if the Borrowing Base
      Usage in effect on such day is equal to or greater than 80%; PROVIDED that
      if there is no Borrowing Base Deficiency on the effective date of the
      Applicable Redetermination (after giving effect thereto, or if there is
      such a Borrowing Base Deficiency, such deficiency is cured within 30 days,
      as contemplated herein), the commencing on the later of such effective
      date or cure date, if applicable, the Commitment Fee Rate thereafter for
      any day shall be a rate per annum equal to (a) .30% if the Borrowing Base
      Usage in effect on such day is less than or equal to 33% and (b) .375% if
      the Borrowing Base Usage in effect on such day is greater than 33%.

      (b) Subsection 1.1 of the Credit Agreement is hereby amended by deleting
the definition of "March '99 Redetermination" and adding thereto the following
new definitions in alphabetical order:

            "APPLICABLE REDETERMINATION": the August '99 Redetermination unless
      the Special Redetermination shall occur as provided in subsection 4.9(f)
      in which case the Applicable Redetermination shall be the Special
      Redetermination.

            "AUGUST '99 REDETERMINATION": the redetermination of the Borrowing
      Base scheduled for August 23, 1999, pursuant to subsection 4.9(c),
      utilizing the June 30, 1999 Reserve Report, which is required to be
      delivered prior to July 30, 1999.

            "JUNE 30, 1999 RESERVE REPORT": a Reserve Report prepared by the
      Borrower, dated as of June 30, 1999.

            "SPECIAL REDETERMINATION": as defined in subsection 4.9(f).

      3. AMENDMENTS TO SUBSECTION 4.9. Subsection 4.9 of the Credit Agreement is
hereby amended by deleting such subsection in its entirety and substituting in
lieu thereof the following:

            "4.9 COMPUTATION OF BORROWER BASE. (a) BORROWING BASE. (i) The
      Borrowing Base in effect from time to time shall represent the maximum
      principal amount (subject to the aggregate amount of the Revolving Credit
      Commitments) of Loans and Letter of Credit

                                     -3-
<PAGE>
      Outstandings that the Lenders will allow to remain outstanding during the
      Commitment Period. The Borrowing Base will be based upon the value of
      certain Proved Reserves attributable to the Oil and Gas Properties of the
      Borrower and its Subsidiaries and other assets of the Borrower and its
      Subsidiaries acceptable to the Administrative Agent in its sole
      discretion, and will be determined by the Administrative Agent in
      accordance with paragraph (d) of this subsection 4.9, subject to approval
      by the Supermajority Lenders (or, with respect to the Applicable
      Redetermination, all of the Lenders). Until the Commitments are no longer
      in effect, all Letters of Credit have terminated and all of the Loans and
      all other obligations under this Agreement are paid in full, this
      Agreement shall be subject to the then effective Borrowing Base.

            (b) Reserve Reports. Except as provided below with respect to the
      August '99 Redetermination, prior to March 1 and September 1 of each year,
      the Borrower shall, at its own expense, furnish to the Administrative
      Agent and to each Lender Reserve Reports, which Reserve Reports shall be
      dated as of the immediately preceding December 31 (in the case of Reserve
      Reports due on March 1) and June 30 (in the case of Reserve Reports due on
      September 1), and shall set forth, among other things, (i) the Oil and Gas
      Properties, then owned by the Borrower and its Subsidiaries, (ii) the
      proved Reserves attributable to such Oil and Gas Properties and (iii) a
      projection of the rate of production and net income of the Proved Reserves
      as of the date of such Reserve Report, all in accordance with the
      guidelines published by the Securities and Exchange Commission and such
      assumptions as the Administrative Agent shall provide. In connection with
      the August '99 Redetermination, the June 30, 1999 Reserve Report normally
      due to be delivered prior to September 1, 1999 shall be delivered prior to
      July 30, 1999. Concurrently with the delivery of the Reserve Reports, the
      Borrower shall furnish to the Administrative Agent and to each Lender a
      certificate of a Responsible Officer showing any additions to or deletions
      from the Oil and Gas Properties listed in the Reserve Report, which
      additions or deletions were made by the Borrower and its Subsidiaries
      since the date of the previous Reserve Report.

            (c) REDETERMINATIONS OF THE BORROWING BASE. The Borrowing Base shall
      be redetermined (i) after receipt by the Administrative Agent of each
      scheduled Reserve Report, commencing with the June 30, 1999 Reserve
      Report, (ii) upon the delivery of a Lender Redetermination Note (which
      shall not be delivered until after the Applicable Redetermination) to the
      Borrower and (iii) upon the delivery of a Borrower Redetermination Notice
      (which, except as provided in paragraph (f) below, shall not be delivered
      until after the Applicable Redetermination) to the Administrative Agent,
      all as provided in this subsection 4.9. Within 15 days after the delivery
      of a Borrower Redetermination Notice or a Lender Redetermination Notice,
      the Borrower shall furnish to the Administrative Agent and to each Lender
      a Reserve Report as of the most recent practicable date. If the Borrower
      fails to deliver a Reserve Report within the time period provided for in
      the preceding sentence, then the Administrative Agent shall have the right
      to rely on the last Reserve Report previously delivered by the Borrower
      which any such adjustments and taking into account any additional
      information as the Administrative Agent may deem appropriate, in its sole
      discretion. Other

                                     -4-
<PAGE>
      than in connection with the August '99 Redetermination or the Special
      Redetermination, on or before the date which is 30 days after receipt (i)
      of a scheduled semi-annual Reserve Report or (ii) of a Reserve Report in
      connection with a Lender Redetermination Notice or a Borrower
      Redetermination Notice, the Administrative Agent shall redetermine the
      Borrowing Base in its sole discretion, and the Administrative Agent shall
      notify the borrower and the Lenders of its redetermination of the
      Borrowing Base. In connection with the August '99 Redetermination , the
      Administrative Agent shall redetermine the Borrowing Base by August 13,
      1999 provided the June 30, 1999 Reserve Report has been received by it no
      later than July 30, 1999. In connection with a Special Redetermination,
      the Administrative Agent shall redetermine the Borrowing Base within 14
      days of receipt from the Borrower of the Reserve Report to be used in
      connection therewith. Within 10 days after receipt from the Administrative
      Agent of the amount of its redetermination of the Borrowing Base, each
      Lender shall notify the Administrative Agent stating whether or not such
      Lender agrees with that determination. Failure of any Lender to give such
      Notice within such period of time shall be deemed to constitute an
      acceptance of such redetermination. If the Supermajority Lenders (or, with
      respect to the Applicable Redetermination, all of the Lenders) agree with
      that redetermination, then the Administrative Agent promptly shall notify
      the Borrower of the Borrowing Base as so redetermined, whereupon that
      redetermined value shall automatically become effective (and shall remain
      effective until the Borrowing Base is again redetermined as provided in
      this subsection 4.9(c)). If the Supermajority Lenders (or with respect to
      the Applicable Redetermination, all of the Lenders) have not approved or
      are not deemed to have approved the Borrowing Base within the 10 day
      period following their receipt of the proposed amount from the
      Administrative Agent, the Borrowing Base shall be set at the amount of the
      then current Borrowing Base and the Borrowing Base shall remain at such
      level until the Supermajority Lenders (or, with respect to the Applicable
      Redetermination, all of the Lenders), utilizing the procedure outlined
      herein, agree on a new Borrowing Base. Each redetermination provided for
      by this subsection 4.9(c) shall be made in accordance with the provisions
      of subsection 4.9(d). Other than in connection with the Applicable
      Redetermination, it is the intention of the Borrower and the Lenders that
      the Borrowing Base be redetermined within 45 days after the furnishing of
      each Reserve Report, subject to the provisions of this paragraph (c).

            (d) CRITERIA (1) All determinations and redeterminations by the
      Administrative Agent provided for in this subsection 4.9 (and any
      determinations and decisions by either or both of the Administrative Agent
      and the Supermajority Lenders (or, with respect to the Applicable
      Redetermination, all of the Lenders) in connection therewith, including
      effecting any redetermination of the value of any component contained in a
      Reserve Report) shall be made by the Administrative Agent and the Lenders
      in their sole discretion and shall be made on a reasonable basis and in
      good faith based upon the application by the Administrative Agent and the
      Lenders of their respective normal oil and gas lending criteria as they
      exist at the time of determination.

                                     -5-
<PAGE>
            (ii) All redeterminations of the Borrowing Base referred to in this
      subjection 4.9 shall become effective immediately upon the delivery of
      notice by the Administrative Agent to the Borrower of the redetermination.

            (iii) Upon the issuance of any Subordinated Indebtedness, the
      Borrowing Base shall be redetermined in accordance with the procedures set
      forth in subsection 4.9 which would have applied had a Borrower
      Redetermination Notice or a Lender Redetermination Notice been delivered.

            (e) TITLE. Concurrently with the delivery to the Administrative
      Agent of each Reserve Report, the Administrative Agent may request that
      the Borrower furnish to the Administrative Agent reasonable evidence of
      the Borrower's title to the Oil and Gas Properties which have been
      developed or acquired by the Borrower subsequent to the Reserve Report
      immediately preceding such Reserve Report.

            (f) SPECIAL REDETERMINATION. On or before the August '99
      Redetermination the Borrower may request a special redetermination of the
      Borrowing Based by delivering a Borrowing Redetermination Notice and a
      Reserve Report both as required by subsection 4.9(c) hereof. Such special
      redetermination of the Borrowing Base shall become effective if it is
      approved by all the Lenders and if, upon the effectiveness thereof, no
      Borrowing Base Deficiency exists (such a special Redetermination being
      herein referred to as the "SPECIAL REDETERMINATION"). If the Special
      Redetermination becomes effective prior to July 15, 1999, then subsection
      7.12(b)(i) hereof shall cease to be in effect. The occurrence of the
      Special Redetermination shall eliminate the need for the August '99
      Redetermination and the next scheduled Borrowing Base redetermination will
      be in connection with the December 31, 1999 Reserve Report.

      4. AMENDMENTS TO SECTION 4.10. Subsection 4.10 of the Credit Agreement is
hereby amended by deleting such subsection in its entirety, and substituting in
lieu thereof, the following:

            "4.10 BORROWING BASE COMPLIANCE. If, upon any redetermination of the
      Borrowing Base pursuant to subsection 4.9(c) other than in connection with
      the issuance of Subordinated Indebtedness provided for in subsection
      8.2(f), the Aggregate Revolving Credit Exposure of the Lenders exceeds the
      Borrowing Base then in effect (any such excess, the "BORROWING BASE
      DEFICIENCY"), the Borrower shall prepay the Revolving Credit Loans and
      then to the extend necessary, cash collateralize the Letter of Credit
      Outstandings in an amount equal to at least 50% of the Borrowing Base
      Deficiency within 90 days after the effective date of the redetermination
      resulting in such Borrowing Base Deficiency, and within the next 90 days
      prepay the Revolving Credit Loans and then cash collateralize the Letter
      of Credit Outstandings in an amount equal to the balance of such Borrowing
      Base Deficiency in each case together with interest accrued to the date of
      such payment or

                                     -6-
<PAGE>
      prepayment and any amounts payable under subsection 4.14; PROVIDED that,
      if there exists a Borrowing Base Deficiency upon the effectiveness of the
      Applicable Redetermination, the Borrower shall within 30 days of the
      effectiveness of the Applicable Redetermination, prepay the Revolving
      Credit Loans and then case collateralize the Letter of Credit Outstandings
      (together with interest accrued to the date of such payment or prepayment
      any amounts payable under subsection 4.14) in an amount equal to such
      Borrowing Base Deficiency. If at any other time there exists a Borrowing
      Base Deficiency (including as a result of a redetermination in connection
      with the incurrence of Subordinated Indebtedness provided for in
      subsection 8.2(f), the Borrower shall immediately prepay the Revolving
      Credit Loans and then to the extent necessary, cash collateralize the
      Letter of Credit Outstandings in an amount equal to 100% of such Borrowing
      Base Deficiency together with (i) inter3est accrued to the date of such
      payment or prepayment and (ii) any amounts payable under subsection 4.14.
      Notwithstanding the foregoing, the Borrower shall immediately apply 100%
      of the Net Proceeds of any Redetermination Event described in clauses (a),
      (b), (c), or (d) of the definition thereof to prepay outstanding Loans and
      then cash collateralize the Letter of Credit Outstandings. Prepayments and
      collateralization pursuant to this subsection 4.10 shall be made as set
      forth in subsection 4.5(c)."

      5. AMENDMENT TO SUBSECTION 7.2. Subsection 7.2 of the Credit Agreement is
hereby amended by deleting the words "January 15, 1999" from clause "(f)"
thereof and substituting in lieu thereof the words "July 15, 1999."

      6. AMENDMENTS TO SECTION 7.11. Subsection 7.11 of the Credit Agreement is
hereby amended by deleting such subsection in its entirety and substituting in
lieu thereof the following:

            "7.11 FURTHER ASSURANCES. Upon the request of the Administrative
      Agent, promptly perform or cause to be performed any and all acts and
      execute or cause to be executed any and documents (including, without
      limitation, financing statements and continuation statements) for filing
      under the provisions of the Uniform Commercial Code or any other
      Requirement of Law which are necessary or advisable to maintain in favor
      or the Administrative Agent, for the benefit of the Lenders, Liens on the
      Pledged Securities and on the Oil and Gas Properties subject to the
      Mortgages that are duly perfected in accordance with all applicable
      Requirements of Law; PROVIDED the Liens created by the Mortgages shall be
      released after the effectiveness of the Applicable Redetermination
      (pursuant to documentation reasonably satisfactory to the Administrative
      Agent) if (x) upon redetermination of the Borrowing Base in connection
      with the Applicable Redetermination it is determined that there is no
      Borrowing Base Deficiency, or if there is such a Borrowing Base
      Deficiency, such deficiency is cured within 30 days, (y) at such time no
      Default or Event of Default has occurred and is continuing and (z) unless
      the Special Redetermination is applicable, the June 30, 1999 Reserve
      Report was delivered by the Borrower to the Administrative Agent by July
      30, 1999."

                                     -7-
<PAGE>
      7. AMENDMENT TO SECTION 7.12. Subsection 7.12 of the Credit Agreement is
hereby amended by deleting paragraph (b) thereof in its entirety and
substituting in lien thereof the following:

            "(b) The Borrower hereby directs the Administrative Agent to file
      and record the Additional Mortgage in all filing offices as the
      Administrative Agent deems appropriate upon the occurrence of any of the
      following events (and the Administrative Agent and the Lenders agree not
      to file or record the Additional Mortgage until the occurrence of any of
      the following events):

            (i) the Borrower fails to deliver the certificate required by
      subsection 7.2(f) by July 15, 1999 or if the Borrower delivers such
      certificate, subsequent information is received by the Borrower or the or
      the Administrative Agent which demonstrates the reasonable satisfaction of
      the Administrative Agent that the borrower is not in compliance with
      subsection 8.1(d), or (f); or

            (ii) if the Special Redetermination has not occurred and Borrower
      fails to deliver the June 30, 1999 Reserve to the Administrative Agent by
      July 30, 1999 or if upon redetermination of the Borrowing Base in
      connection with the August '99 Redetermination, it is determined that a
      Borrowing Base Deficiency exists and the Borrower fails to cure such
      deficiency within 30 days of the effective date of the August '99
      Redetermination by prepaying the Revolving Credit Loans and/or cash
      collateralizing Letter of Credit Outstandings."

      8. AMENDMENTS TO SUBSECTION 8.1. (a) Subsection 8.1 of the Credit
Agreement is hereby amended by deleting clause (b) thereof and substituting in
lieu thereof the following:

            "(b) total Debt Leverage Ratio. Permit (i) the ratio of Indebtedness
      of the Borrower and its subsidiaries, as of the last day of the fiscal
      quarters ending September 30, 1998 and December 31, 1998, to EBITDA, for
      the period of four consecutive fiscal quarters then ended, to be greater
      than 3.25 to 1.0, (ii) the ratio of Indebtedness of the Borrower and its
      Subsidiaries, as of the last day of the fiscal quarters ending march 31,
      1999 and June 30, 1999, to EBITDA, for the period of four consecutive
      fiscal quarters then ended, to be greater than 4.0 to 1.0, (iii) the ratio
      of Indebtedness of the Borrower and its Subsidiaries, as of the last day
      of the fiscal quarter ending September 30l, 1999, to EBITDA, for the
      period of four consecutive fiscal quarters then ended, to be greater than
      3.50 to 1.0, or (iv) the ratio of Indebtedness of the Borrowers and its
      Subsidiaries, as of the last day of any fiscal quarter thereafter
      (commencing December 31, 1999), to EBITDA, for the period of four
      consecutive fiscal quarters then ended, to be greater than 3.25 to 1.0."

                                     -8-
<PAGE>
            (c) Subsection 8.1 of the Credit Agreement is hereby amended by
      deleting paragraphs (d), (e) and (f) thereof in their entirety and
      substituting in lieu thereof the following:

            "(d) Average Daily Production. Permit the average daily production
      of the Proved Reserves of the Borrower and its Subsidiaries for the
      calendar month ending June 30, 1999 to be less than 150 MMCFE/D.

            (e) Proved Reserves. Permit the aggregate Proved Reserves of the
      Borrower and its Subsidiaries as of June 30, 1999 to be less than 325
      BCFE.

            (f) Working Capital. Permit the Consolidated Working Capital as at
      June 30, 1999 to be less than negative $10,000,000."

      9. WAIVER OF SUBSECTION 4.9(B) OF THE CREDIT AGREEMENT. The Administrative
Agent and the Required Lenders hereby waive any Default or Event of Default
which may have occurred as a result of the receipt of a Reserve Report dated
March 31, 1999 furnished by the Borrower on March 25, 1999 in lien of the
Reserve Report scheduled to be dated December 31, 1998 and furnished by the
Borrower prior to March 1, 1999 and as a result of the Borrowing Base not being
redetermined as provided in subsection 4.9 (as in effect prior to the
effectiveness of this Fourth Amendment).

      10. CONDITIONS TO EFFECTIVENESS. The amendments and changes provided for
in this Fourth Amendment shall become effective on the date (the "FOURTH
AMENDMENT EFFECTIVE DATE") upon which the following conditions precedent are
satisfied and the Administrative Agent notifies the Borrower and the Lenders of
the Fourth Amendment Effective Date:

            (a) the Administrative Agent shall have received counterparts of
      this Fourth Amendment, duly executed by the Borrower and the Lenders
      listed in the signature pages hereof;

            (b) the Administrative Agent shall have received counterparts of the
      Acknowledgment and Consent, confirming and agreeing that the Second
      Amended and Restated Guarantee, dated as of June 30, 1998, is and shall
      continue to be, in full force and effect, duly executed by the Guarantors
      attached hereto;

            (c) the Administrative Agent shall have received all fees and
      expenses required to be paid on or before the Fourth Amendment Effective
      Date; and

            (d) the Administrative Agent shall have received a copy of the
      resolutions, in form and substance satisfactory to the Administrative
      Agent, of the Board of Directors of each applicable Loan Party (other than
      the borrower) and the executive committee of the Board of Directors of the
      borrower authorizing (i) the execution,

                                     -9-
<PAGE>
      delivery and performance of this Fourth Amendment certified by its
      Secretary or Assistant Secretary as of the Fourth Amendment Effective
      Date, which certificate shall state that the resolutions thereby certified
      have not been amended, modified, revoked or rescinded as of the date of
      such certificate.

      11. REPRESENTATIONS AND WARRANTIES. The Borrower as of the date hereof and
after giving effect to the amendments contained herein, hereby (a) represents
and warrants to the Administrative Agent and each Lender that the Additional
Mortgage, together with the Existing Mortgage, when filed, shall give the
Lenders a first lien on Proved Reserves of the Borrower constituting at least
75% of the net present value of all the Proved Reserves of the Borrower and its
Subsidiaries as reflected in the Reserve Report dated as of March 31, 1999,
prepared by T.J. Smith & Company, Inc. and delivered to the Lenders and (b)
confirms, reaffirms and restates that (i) representations and warranties made by
it in Section 5 of the Credit Agreement are true and correct on and as of the
date hereof (except to the extent such representations and warranties are stated
to relate to a specific earlier date) and (ii) no Default or Event of Default
has occurred and is continuing on the date hereof; PROVIDE, that each reference
to the Credit Agreement therein shall be deemed to be a reference to the Credit
Agreement after giving effect to this Fourth Amendment.

      12. PAYMENT OF EXPENSES. The Borrower agrees to pay or reimburse the
Administrative Agent for all of its out-of-pocket costs and reasonable expenses
incurred in connection with this Fourth Amendment, any other documents prepared
in connection herewith and the transactions contemplated hereby, including,
without limitation, the reasonable fees and disbursements of counsel to the
Administrative Agent.

      13. REFERENCE TO AND EFFECT ON THE LOAN DOCUMENTS: LIMITED EFFECT. On and
after the date hereof and the satisfaction of the conditions contained in
Section 7 of this Fourth Amendment, each reference in the Credit Agreement to
"this Agreement", "hereunder", "hereof" or words of like import referring to the
Credit Agreement, and each reference in the other Loan Documents to "the Credit
Agreement", "thereunder", "thereof" or words of like import referring to the
Credit Agreement, shall mean and be a reference to the Credit Agreement as
amended hereby. The execution, delivery and effectiveness of this Fourth
Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power or remedy of any Lender or the Agent under any of the Loan
Documents, nor constitute a waiver of any provisions of any of the Loan
Documents. Except as expressly amended herein, all of the provisions and
covenants of the Credit Agreement and the other Loan Documents are and shall
continue to remain in full force and effect in accordance with the terms thereof
and are hereby in all respects ratified and confirmed.

      14. COUNTERPARTS. This Fourth Amendment may be executed by one or more of
the parties hereto in any number of separate counterparts (which may include
counterparts delivered by facsimile transmission) and all of said counterparts
taken together shall be deemed to constitute one and the same instrument. Any
executed counterpart delivered by facsimile transmission shall be effective as
for all purposes hereof.

                                     -10-
<PAGE>
      15. SEVERABILITY. Any provision of this Fourth Amendment which is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

      16. INTEGRATION. This Fourth Amendment and the other Loan Documents
represent the agreement of the Loan Parties, the Administrative Agent and the
Lenders with respect to the subject matter hereof, and there are no promises,
undertakings, representations or warranties by the Administrative Agent or any
Lender relative to the subject matter hereof not expressly set forth or referred
to herein or in the other Loan Documents.

      17. GOVERNING LAW. THIS FOURTH AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF
THE PARTIES UNDER THIS FOURTH AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND
INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

                 [Remainder of Page Intentionally Left Blank]

                                     -11-
<PAGE>
            IN WITNESS WHEREOF, the parties hereto have caused this Fourth
Amendment to be duly executed and delivered by their respective proper and duly
authorized officer as of the day
and year first above written.

                            THE MERIDIAN RESOURCE CORPORATION

                            By:/s/ P. RICHARD GESSINGER
                            Name:  P. Richard Gessinger
                            Title: Executive Vice President


                            THE CHASE MANHATTAN BANK, as
                            Administrative Agent, Issuing Lender and as a Lender


                            By:/s/ STEVEN WOOD
                            Name:  Steven Wood
                            Title: Vice President


                            MORGAN GUARANTY TRUST COMPANY OF NEW YORK,
                            as a Lender

                            By:/s/ CAN'T READ THIS NAME
                            Name:  Can't read this name
                            Title: Vice President

                                   -12-
<PAGE>
                            MEES PIERSON, as a Lender

                            By:/s/ DARRELL W. HOLLEY
                            Name:  Darrell W. Holley
                            Title: Senior Vice President

                                   -13-
<PAGE>
                            By:/s/ DEIRDRE M. SANBORN
                            Name:  Deirdre M. Sanborn
                            Title: Assistant Vice President


                            NATIONSBANK, N.A., as a Lender

                            By:/s/ JAMES R. ALLRED
                            Name:  James R. Allred
                            Title: Managing Director


                            SOCIETE GENERALE, SOUTHWEST AGENCY, as a Lender

                            By:/s/ PAUL S. CARVER
                            Name:  Paul S. Carver
                            Title: Managing Director


                            TORONTO DOMINION (TEXAS), INC., as
                             Arranger, Documentation Agent and as a Lender


                            By:/s/ AZAR S. AZARPOUR
                            Name:  Azar S. Azarpour
                            Title: Vice President

                                   -14-

                                                                    EXHIBIT 4.23

                     AMENDMENT NO. 1 TO THE TEXAS MERIDIAN
               RESOURCES CORPORATION DIRECTOR STOCK OPTION PLAN
               ADOPTED BY THE BOARD OF DIRECTORS ON MAY 5, 1999

            RESOLVED, that an amendment (the "DIRECTOR AMENDMENT") to the
      Company's Non-Employee Director Stock Option Plan (the "DIRECTOR Plan"),
      to increase the number of shares authorized for issuance under the
      Director Plan by 300,000 is hereby authorized, ratified and approved;

                                                                     EXHIBIT 5.1

                    [Fulbright & Jaworski L.L.P. Letterhead]

July 23, 1999


The Meridian Resource Corporation
15995 N. Barker's Landing, Suite 300
Houston, Texas 77079

Ladies and Gentlemen:

         We have acted as counsel to The Meridian Resource Corporation, a Texas
corporation (the "Company"), in connection with the registration under the
Securities Act of 1933 (the "Act") of an aggregate of 2,000,000 shares (the
"Shares") of the Company's common stock, $.01 par value (the "Common Stock"), of
which (i) 1,000,000 shares (the "Geoscientist Shares") of Common Stock are to be
offered upon the terms and subject to the conditions set forth in the Meridian
Resource Corporation Geoscientist Well Bonus Plan (the "Geoscientist Plan"), and
(ii) 1,000,000 shares (the "TMR Trust Shares") of Common Stock are to be offered
upon the terms and subject to the conditions set forth in the Meridian Resource
Corporation TMR Employee Trust Well Bonus Plan (the "TMR Trust Plan" and
together with the Geoscientist Plan, the "Plans").

         We have examined or considered originals or copies, certified or
otherwise identified to our satisfaction, of the Third Amended and Restated
Articles of Incorporation of the Company, the Amended and Restated By-laws of
the Company, as amended, the Plans, records of relevant corporate proceedings
with respect to the offering of the Shares and such other documents, instruments
and corporate records as we have deemed necessary or appropriate for the
expression of the opinions contained herein. We have also reviewed the Company's
Registration Statement on Form S-8 (the "Registration Statement") to be filed
with the Securities and Exchange Commission with respect to the Shares.

         We have assumed the authenticity and completeness of all records,
certificates and other instruments submitted to us as originals, the conformity
to original documents of all records, certificates and other instruments
submitted to us as copies, the authenticity and completeness of the originals of
those records, certificates and other instruments submitted to us as copies and
the correctness of all statements of fact contained in all records, certificates
and other instruments that we have examined.

         Based on the foregoing and having regard for such legal considerations
as we have deemed relevant, we are of the opinion that (i) the Geoscientist
Shares have been duly and validly authorized for issuance and, when issued in
accordance with the terms of the Geoscientist Plan, will be duly and validly
issued, fully paid and nonassessable and (ii) the TMR Trust Shares have been
duly and validly authorized for issuance and, when issued in accordance with the
terms of the TMR Trust Plan, will be duly and validly issued, fully paid and
nonassessable .

         The foregoing opinion is limited to the federal laws of the United
States of America and the Texas Business Corporation Act, and we are expressing
no opinion as to the effect of the laws of any other jurisdiction.

         We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement.

                                             Sincerely,

                                             /s/FULBRIGHT & JAWORSKI L.L.P.
                                                Fulbright & Jaworski L.L.P.

                                                                    EXHIBIT 23.2


                        CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement (Form
S-8 registering 2,000,000 shares of common stock) pertaining to the Texas
Meridian Resource Corporation Geoscientist Well Bonus Plan and the Meridian
Resource Corporation TMR Employee Trust Well Bonus Plan of our report dated
March 17, 1999, with respect to the consolidated financial statements of The
Meridian Resource Corporation included in its Annual Report (Form 10-K) for the
year ended December 31, 1998, filed with the Securities and Exchange Commission.


                                                          ERNST & YOUNG L.L.P.



Houston, Texas
July 23, 1999

                                                                    EXHIBIT 23.3

              CONSENT OF RYDER SCOTT COMPANY PETROLEUM ENGINEERS


We hereby consent to the references to our reviews dated January 12, 1996,
February 19, 1997, and February 23, 1998 which were used to prepare the
Estimated Future Reserves Attributable to Certain Leasehold Interests of Texas
Meridian Resources Corporation as December 31, 1995, December 31, 1996 and
December 31, 1997, respectively, and to the reference to Ryder Scott Company
Petroleum Consultants as experts in the field of petroleum engineering, which
were incorporated by reference in your Form S-8 Registration Statement.



                                          RYDER SCOTT COMPANY
                                          PETROLEUM CONSULTANTS


Houston, Texas
July 21, 1999

                                                                    EXHIBIT 23.4

                    [T.J. SMITH & COMPANY, INC. LETTERHEAD]


                     CONSENT OF T.J. SMITH & COMPANY, INC.


July 22, 1999


The Meridian Resource corporation
15995 N. Barkers Landing, suite 300
Houston, Texas 77079

Re:  Consent of Independent Petroleum Engineers

Gentlemen:

         We hereby consent to the references to our reviews dated February 26,
1998, and February 25, 1999, which were used to prepare the Estimated Future
Reserves Attributable to Certain Leasehold Interests of The Meridian Resource
Corporation as of December 31, 1997, and December 31, 1998, respectively, in
your Form S-8 Registration Statement and to the reference to T. J. Smith &
Company, Inc. as experts in the field of petroleum engineering.

                                          Very truly yours,

                                          T. J. Smith & Company, Inc.

                                          By /S/ T. J. SMITH, P.E.
                                                 T. J. Smith, P.E.


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